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    <title>Document</title>
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    <script>
      var obj = {
        name: '张三',
        age: '18',
      };

      var a = JSON.stringify(obj); // 序列化、转换成JSON格式
      var b = JSON.parse(a); // 反序列化 、转换成对象格式
      console.log(b);
    </script>
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